Trap-door for railway-cars and similar structures.



R. T. AXE.

TRAP DOOR FOR RAILWAY CARS AND SIMILAR STRUCTURES.

APPLICATION FILED 00120, 1910. RENEWED SEPT. 20, 1912.

Patented Mar. 10, 1914.

2 SHEETS-SHEET 1.

1 i/tweooea R. T. AXE.

TRAP DOOR FOR RAILWAY CARS AND SIMILAR STRUCTURES.

APPLIOATION FILED 0OT.6,1910. RENEWED SEPT. 20, 1912.

1 090 092. Patented Mar. 10, 1914. 9 a Z SHEETS-SHEET 2.

By. 3. B

I B 0 a E C- 6 l/ 1C 8V" A 53 C M 1 o 0 4 D azz?" 5] mm ntoz ROY T. AXE, or sYRAeUsE, NEW YORK,

ASSIGNOR TO OLIVER M. EDWARDS, OF

SYRACUSE. NEW YORK.

TRAP-DOOR FOR RAILWAY-CARS AND SIMILAR STRUCTURES.

Application filed October 6. 1910, Serial No. 585,641.

To all whom it may 0011mm:

Be it known that I, For T. AXE, a citizen of the United States, residing at Syracuse, county of Onondaga, State of New York, have invented certain new and useful improvements in T rap-Doors :t'or .l-lailway Cars and Similar Structures, ot which the following is a full, clear and exact description, reference being had to the drawings accompanying the same.

This invention relates generally to trap doors for railway cars and similar struc tnres, as for instance, such as are used to cover and uncover the steps leading to and from such cars, but more particularly to trap doors that have a sliding movement endwise ot the axial line of hinging the doors to the platforms, such for instance, as are used to bridge over or cover a space between the car and station platforms to a ft'ord a safe and convenient passage from the car to such stations.

One of the objects of this invention is to provide a coi'nparatively cheap and easily operated. connection between the main portion of? a trap door and the hinging means, whereby such door may be controlled in. its sidewisc movement by such connection independently ot' the platform in which the door is hung.

Another object is to provide a comparatively cheap durable and easily operated connection between the door and its hinging means by which the door is given a sidewise movement or a movement substantially lengthwise ot the axial line of its hinging to the platform.

Another object is to provide means for connecting the operating devices with the door and hinging means in a manner to guide or control the movement of the door in a sidewise direction.

Other objects will appear from the descriptions hereinafter given.

ith these objects in view the invention consists in the constructimi, combination and arrangement of parts to be hereinartter fully (ltSCl'lllttl and particularly pointed out in the claims hereunto annexed and iliorming a part of this specification.

in operating trap doors having a combined turning and sidewise movement on the hinging means, it has been found desirable to control or guide the main portion of j the door in such sidewise movement by t Specification of Letters Patent.

Patented Mar. 10, 1914.

Renewed September 20. 1912. Serial No. 721,520.

means attached to the door at different points relatively to it and its hinging means. hen the main portion of the door is thus connected with the hinging means the points of. connection between the door and the axial line of the hinging means should be substantial distances apart so that all portions ot the door necessarily travel in the. same general line irrespective of the opening in the platform and the axial line of hinging in which it. is hung. Portions of' such means must also move with the door and also relatively to the axial line ol the hinging means as the main portion oil the door turns in opening or closing.

Figure 1 shows in plan, view a trap door and a portion of? a car platform illustrating gencrally the door in position for use when the san'le has been projected sidewise to bridge over or cover a given space between a car and platlm-m, with the means by which the door is projected and the connectionv between the door and hinging means, which are there seen in dotted lines. Fig. 2 shows in cross section on line 2 of Fig. 1 that which is there shown. Fig. 23 shows the trap door in the open and retracted position with a portion of the door and connecting means broken away. .lhcse ctmnecting means. hinging means and projecting and retracting means are seen in full lines in this Fig. 3. Fig. 1 shows in cross section and on an enlarged scale a detail of the conncction between the, guiding or controlling means and hinging means seen in preceding figures. Fig. 5 shows a modified construc tion of projecting means which, as there. seen, is connecttal directly with the guiding or controlling means instead of being independent thercot as seen in Figs. '1. to 3 oi the drawings, a portion of, the door and guiding or controlling means being broken away as seen. Fig. (3 shows a portion of the trap door in the closed and projected position with the projecting and guiding or controlling nieans shown in dotted lines. Jig. 7 shows in cross section on line T---T that which is seen in Fig. 5. Fig. 8 shows in cross sectio and on an enlarged scale a manner of. connecting the rear part oi the trap door with the hinging means.

Like letters of relcrem'e. \VlltfltYPl. they occur, indicate corresponding parts of the several figures of the drawings.

One embodiment (it my invention is illustrated in Figs. 1 to 4 of the drawings where a specific form of projecting means or means adapted to move the door lengthwise of its axial line is shown, but this specific form of projecting means is not the only form adapted to be used in carrying out the present invention. In this specific form of projecting means the door is projected or retracted in a sidewise direction or lengthwise of the axial line of its hinging to the plat form as such door turns on its hinging means and the sidewise movement of the door is proportioned to the movement of the door on its hinging means in opening or closing. This form of projecting means, as D, consists of abar preferably provided with balls one at each end thereof, one of which engages with a socket (Z attached or secured to the platfrom and the one at the other end is connected with a socket (Z mounted upon the door B adjacent the hinged side thereof and as the door makes its quarter turn in opening or closing, the balls in these sockets have free movement therein so that the door receives a turn on its hinging means, as C, which as seen, is simply a rod 0 mounted in suitable bearings suitably formed in brackets or other suitable means attached to the platform A in which the door B is to be used. The rear portion of the door is connected with the rod 0 by the inclosing clips 0 clearly seen in dotted lines in Fig. 1 of the drawings. In this specific form of projecting means the extent of projection of the door or retraction is according to the extent of the arc of the circle described by the ball on the bar (Z which is in engagement with a socket mounted on the door with the socket cl secured to the platform as a center. Other forms of projecting or retracting means than that shown in Figs. 1, 2 and 3 may be employed if desired and differently arranged and connected in order to project or retract the door, such for instance, as is shown in Figs. 5, 6 and 7.

The guiding or controlling means for guiding and controlling the movement of the door sidewise includes, as shown in Figs. 1, 2 and 3, two substantially parallel bars E, E arranged beneath the door and pivotally connected at one end to the door B near the free side thereof and at the other end to parts projecting radially from the rotatable collars e, 0, those collars being rotatable with the barrel or rod 0 which is movable about a fixed axis and is mounted in suitable bearings c 0 attached to the platform. The axes connecting the ends of the bars E E to the door and the collars c e extend crosswise of the longitudinal axis of the rod 0. These bars, as E E, have a swinging movement relatively to the door B the rod 0 and the platform. A as the door is projected or retracted and they also have a turning movement on the hinging means as the door is opened or closed and by reason of the pivotal connections of these bars with the door and hinging means the door is controlled or guided at two different points as it is projected or retracted and it moves easily and requires but a small force to be applied in operating the door. With the form of proj ecting and retracting means shown in these Figs. 1, 2 and 3, the door is projected or retracted while being opened or closed, and moves slightly toward and from the longitudinal axis of the barrel 0 but the specific projecting and retracting means is no material portion of the present invention because such controlling or guiding means is adapted for use with any form of projecting means that the constructor sees fit to use.

Another embodiment of the present invention is illustrated in Figs. 5, 6 and 7 of the drawings and as there shown the projecting and retracting means are connected directly with the controlling or guiding means and act upon the door through such controlling means in projecting or retracting the door. As here shown, there are two levers or bars, as E E each of which is pivotally connected at one end to the door B and fulcrumed at m 00" upon arms, as d [[5, respectively, secured to the rod or tube 0 of the hinging means C, which bars or levers at their free ends are provided with anti-friction rollers in position to coact with cam "surfaces, as e 0 respectively. The rod or tube a is mounted in brackets 0 substantially as shown in Figs. 1, 2 and 3.

The arms cl (Z which are secured to the rod or tube 0 simply turn with such rod or tube as it turns in the brackets 0 attached to the platform in the opening and closing of the door, such arms forming fulcrums for the levers or bars E E respectively. The anti-friction roller in the free end of the bar or lever E coacts with the cam surface a in retracting the door as shown in Fig. 5 and the anti-friction roller in the free end of the lever or bar E coact-s with the cam surface 6 in projecting the door from the position seen in Fig. 5 to that seen in Fig. 6, as the door turns on its hinging means. The pivotal points at which one end of each of the bars or levers is pivotally connected to the door are at equal distances from the axial line of the hinging means and this is also the case with the fulcrum points, as w w, of said levers and as a result the move ment of the door lengthwise of its axial line of hinging is fully controlled and guided in the projection and retraction of the same independently of the opening in which the door is mounted.

In the construction shown in Figs. 5, 6 and 7 the door is moved in the arcs of circles of which the fulcrum points x as are the centers as it is moved sidewise or lengthwise of the axial line of its hinging during the turnskilled in this art that any means may be is the case in the cmistruction shown in Figs. 1, 2 and 3, but it will be obvious to those ing of the door upon its hinging means, as used to project and retract the doors whether such means not upon the door in the manner herein, set forth or in any other manner, and also whether it be while the door is turning or when it is in any given position, because the means by which this work is accomplished no material portion of the present invention.

The rear portion of the door in each of the embodiments herein shown is connected with the hinging means by clips, as 0 as seen more particularly in Figs. 1, 3, 5, O and 8 ot' the drawings and this portion of the door in each case is connected with the rod or tube 0 oil the hinging means, but it may be otherwise so long as the door as a whole may turn on its hinging means and move generally in a sidewise direction to close the opening in the platform.

What is herein shown and described will naturally su gest to those slcilled in the art other speci c terms of guiding or controlling means and modifications in that which is herein shown and described which, while varying in form or details of construction or arrangement will, have substantially the same method or mode of operation in accomplishing essentially the same work as is the case with that which is herein set forth, hence I: do not desire to limit my invention to the specific tl orms, constriuwtions or arrangements of parts or devices herein shown and described, but desire to include all forms, constri'ictions and arrangements that are within the spirit of my invention.

What I claim as new is:-

1. The combination with a car platform provided with a step opening and a trap door movable about an axis to close and ex pose said opening and niovable in a direction substantially lengthwise of said axis for projecting a part of its length beyond the plane of the side at the car and for with drawing such portion, of a hinge element supported from the car and movable about a fixed a xis, and means for connecting the door. to said element including a part movable about an axis shiiltablewith said ele1nent,substantially as and for the purpose described.

2. The combination with a our platform prc *ided with a step opening and a trap door movable about an axis to close and expose said opening and movable in a direction substantially lengthwise of said axis tor projecting a part o'l. its length beyond the plane Of the side of the car and for withdrawing such portion, of a hinge element supported From the car and movabl: about a tixcd axis, and means for connecting the door to said clement including a part pivotally connected at one end to said element and at its opposite end to the door, substantially as and for the purpose specified.

3. The COlllbiIllll'lOll with a our platform provided with a step opening and a trap door movable about an axis to close and expose said opening and movable in a direclion substantially lengtlnvise oil. said axis for projecting a part o'l its length beyond the plane of the side of the car and for witlnlrawing such portion, o'l a hinge element supported from the car and 111( able about a lixed axis, and means for connecting the door to said element including a part having a swinging nnwelncnt relative to said element, substantially as and for the so purpose set forth.

t. The combination. with a an platform provided with a step opening and a trap door movable about an axis to close and expose said opening and movable in a direction substantially lengthwise of said axis for projecting a part of its length beyond the plane of the side oil the car and for withdrawing such portion, ol? a hinge element supported From the ear and movable about a fixed axis, and minus for connecting the door to said element including parallel arms pivotally connected respectively to said element and to the door on the side of the longer axis thereof remote from said element, substantially as and for the purpose described.

5. The combination with a car platform provided with a step opening and a trap door movable about an axis to close and expose said opening and movable in a dircclion substantially lengthwise of said axis for projecting a part o'l its length beyond the plane of the side of the car and for withdrawing such portion, of means for operating on the doo adjacent one side edge thereof for shifting the door in said lengthwise direction, and means, including a part cooperating with the door adjacent the opposite side edge thereof, for supporting and guiding the door during its movements, substantially as and tor the pur 'iose specified.

(3. In combination with a car platilprm, a trap door movable about an axis and having an :n'lditional movement in a directirm at an angle to the path oil. movement of the door about its axis. and connections between the platlorm and the trap door including means movable about said axis. and means extend-- ing beneath the door and ('onneettal to the door in proximity to its Free Hill! and connected to the lirst-mcnlimied means, said secoinl-lnentioned means turning with the first-mentioned means to turn the door therewith and being movable relatively to the tirstmentioned means in the additional movement; ot the door, substantially as and :l'or the purpose set :l'orth.

7. In combination with a our platform having an opening therein, a trap door associated with the opening and having a pivotal and a sliding movement, and connec tions between the platform and the door for controlling the sliding movement of the door, said connections including means located adjacent one side edge of the door and movable about the axis of the pivotal movement of the door, and other means extend ing beneath the door and connected to the first-mentioned means and connected to the door in proximity to the opposite side edge thereof, substantially as and for the purpose described.

8. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about said axis, and a bar arranged beneath the door and connected at one end to the door and at its opposite end to said means, the bar turning with said means to turn the door therewith and being movable relatively to said means in the additional movement of the door, substantially as and for the purpose specified.

9. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about said axis, and a pair of members arranged one in advance of the other and connected to the door and to said means, the members turning with said means to turn the door therewith and being movable relatively to said means in the additional movement of the door, substantially as and for the purpose set forth.

10. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about said axis, and a pair of substantially parallel members arranged one in advance of the other beneath the door and connected to the door and to said means, the members turning with said means to turn the door therewith and being movable relatively to said means in the additional movement of the door, substantially as and for the purpose described.

11. The combination with a car platform having an opening therein, of a trap door associated with the opening and having a pivotal and a sliding movement, and connections between the platform and the door including means movable about the axis for the pivotal movement of the door, and parallel bars connected at corresponding ends to said means to turn therewith and to move in planes substantially radial to said axis, and connected at their opposite ends to the door, substantially as and for the purpose specified.

12. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about said axis, and means pivotally connected to the door and to the first-mentioned means, said second mentioned means turning with the first mentioned means to turn the door therewith and moving relatively to the first-mentioned means and the door in the additional move ment of the door, substantially as and for the purpose set forth.

13. In combination with a car platform, a trap door movable about an axis and hav ing an additional movement in a direction at an angle to the path of movement of the door about itsaxis, and. connections between the platform and the trap door including means movable about said axis, and a bar arranged beneath the door and connected to the door, the bar being pivotally connected to said means and having its pivotal axis arranged crosswise of the first-mentioned axis, said bar turning with said means to turn the door therewith and moving about its pivotal axis relatively to said means in the additional movement of the door, substantially as and for the purpose described.

14:. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about said axis, a bar arranged beneath the door, and pivotal means connecting one end of the bar to the door and connecting the other end of the bar to said means, the axes of the pivotal means extending crosswise of said axis, and the bar turning with said means to turn the door therewith and moving about the axes of said pivotal means relatively to the firstmentioned means and the door in the additional movement of the door, substantially as and for the purpose specified.

15. The combination with a car platform having an opening therein, of a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about said axis, parallel members arranged beneath the door, and pivotal means connecting corresponding ends of the parallel members to the door and connecting the opposite ends of the members to said means, the axes of the pivotal means extending crosswise of said axis, and said parallel members turning with said first-mentioned means to turn the door therewith and moving about the axes of the pivotal means relatively to the fil'Sb-lllGiltlUIlttl means and the deer during the additional movement of the door, substantially its and for the pur pose set forth.

lit. in combination with a car platform, a trap door movable about an axis and having at. additional nmvement in a (liltt'ttitlli at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door inclut'iing means movable about said. axis and provided with a substantially radial engaging part, and means connected to the door and to said engaging part, the second-meationed means turning with the first-mentioned means to turn the door therewith and moving relatively to the .tirst-mentioned means in the additional movement of the door, substantially as and for the purpose described.

l7. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about said axis and. provided with a pair of substantially radial engaging parts one in advance of the other, a pair of substantially parallel members beneath the door, and pivotal means connecting said members to the door and to the engaging parts, the pivotal means being arranged with their axes extending crosswise of the first-mentioned axis, and said members turning with the first-meritioned means to turn the door therewith and moving about the axes of the pivotal means relatively to the first-meintioned means and the door in the additional movement of the door, substantially as and :for the purpose set forth.

18. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including a hinged barrel provided at its ends with fixed substantially radial projections beneath the door, a pair of sul'istantially parallel members beneath the door, and pivotal means connecting said members to the door and to said projections, the pivotal means being arranged with their axes extending crosswise of the first-mentioned axis, and said members turning with the barrel to turn the door therewith. and moving about the axes of the pivotal means relatively to the barrel aml the door in ttn additional 1novementof the door, substantially as and for the purpose specitied.

1.0. in a trap door for car platforms, a hinged support, and a trap door carried by the support and shiftal ie in a direction parallel to the axis of the hinged support amt also shiftable toward and from said axis, substantially as amt for the purpose described.

20. In combination with a car platform, a trap door movable about an axis and having an additional movement; in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about. said axis, means for connecting the hinged side of the door to the tirst-mentioned means and :for guiding said side of the door, and additional means connected to the door and to the first-mentioned means, said additional means turning with the tirst-mentioned means to turn the door therewith, and moving relatively to the lllStklllQlllltillttl means in the additional inoven'lent of the door, substantially as and for the purpose specitied.

21. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about said axis, means for connecting the hinged side of the door to the lirst-meiitioned means and for guidii'ig said side of the door, said connecting and guiding means being tixed to one of the parts connected thereby, and addititmal means connected to the door and to the first-mentioned means, said additional means turning with the first-mentioned means to turn the door therewith and movable relative to the first-mentioned means in the additional movement of the door, substantially as and for the purpose set forth.

32. In combination with a car platform, a trap door movabl: about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, the trap door being also movable toward and from said axis, and connections between the platform and the trap door including means movable about said axis, spaced apart members for conneeting the hinged side of the door to the first-mentioned means and for guiding said side of the door, said members being fixed to the door and being movable laterally relativcl to said means when the door moves toward and from said axis, and additional means connected to the door and to the firstqnentioned means, said additional means turning with the first-mentioned means to turn the door therewith and moving relatively to the first-mentioned means in the additional movement ofthe door, substantially as and for the purpose described.

23. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about said axis, means for connecting a portion of the door to the first-mentioned means and for guiding said portion of the door, and additional means connected to the opposite portion of the door and to the first-mentioned means, said additional means turning with the first-mentioned means to turn the door therewith, and moving relatively to the first-mentioned means in the additional movement of the door, substantially as and for the purpose specified.

24. In combination with a car platform having an opening therein, a rod supported from the platform and associated with the opening, a trap door movable about the axis of the rod and having an additional movement in a direction at an angle to the path of movement of the door about said axis, and means carried by the rod and turning therewith, said means being pivotally connected to the door and movable relatively to the rod in the additional movement of the door, substantially as and for the purpose set forth.

25. The combination with a car platform having an opening therein, a rod supported from the platform and associated with the opening, a trap door movable about the axis of the rod and having an additional movement in a direction at an angle to the path of movement of the door about said axis, parallel members pivotally connected at corresponding ends to the rod and movable about the axis of the rod during the movement of the door about said axis, and pivotal connections between the opposite ends of said members and the trap door, substantially as and for the purpose described.

26. In combination With a car platform having an opening therein, a trap door associated with the opening and movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means located adjacent one side edge of the door and movable about said axis, said means being provided with a pair of substantially radial engaging parts one in advance of the other beneath the door, a pair of substantially parallel members beneath the door, and pivotal means connecting corresponding ends of the members to said engaging parts and connecting the opposite ends of the members to the door near the opposite side thereof, the axes of the pivotal means extending crosswise of the first-mentioned axis, substan tially as and for the purpose specified.

27. In combination with a car platform having an opening therein, a trap door associated with the opening and movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, the trap door being also movable toward and from said axis, and connections between the platform and the trap door including means located adjacent the hinged side of the door and movable about said axis, said means being provided with a pair of substantially radial engaging parts one in advance of the other beneath the door, spaced apart members connecting the hinged side of the door to said means and guiding said side of the door, the members being fixed to the door and being movable laterally relatively to said means when the door moves toward and from said axis, a pair of substantially parallel members beneath the door, and pivotal means connecting corresponding ends of the members to said substantially radial parts and connecting the opposite ends of the parts to the door near the opposite side thereof, the axes of the pivotal means extending crosswise of the first-mentioned axis, substantially as and for the purpose set forth.

28. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, connections between the platform and the trap door including means movable about said axis, and means connected to the door and to the first-men tioned means, said second-mentioned means turning with the first-mentioned means to turn the door therewith and moving relatively to the first-mentioned means and the door in the additional movement of the door, and a spring for moving the door in one direction about its axis, substantially as and for the purpose specified.

29. In combination with a car platform, a trap door movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, connections between the platform and the trap door including a hinged barrel provided at its ends with fixed substantially radial parts one in advance of the other beneath the door, a pair of substantially parallel members beneath the door, pivotal means connecting said members to the door and to said substantially radial parts, the pivotal means being arranged with their axes extending crosswise of the first-mentioned axis, and said members turning with the barrel to turn the door therewith and moving about the axes of the pivotal means relatively to the barrel and the door in the additional movement of the door, and a spring within the barrelv for moving the trap door in one di rection about its axis, substantially as and for the purpose set forth.

30. In combination with. a car platform having an opening therein, a trap door associated with the opening and DIOVZLl'JlC about an axis and having an atflditional movement in a direction at an angle to the path ol movement of the door about its axis, the trap door being also movable toward and from said axis. connections between the platform and the trap door lllt'llltlll'lg means lo cated adjacent the hinged side of the door and movable about said axis, said means being provided with a pair ot substantially radial engaging parts one in advance of the other beneath the door, spaced apart members comiecting the hinged side of the door to said means and guiding said side of the door, the members being tixed to the door and being movable laterally relatively to said means when the door moves toward and from said axis, a pair ot substantially parallel members beneath the door, and pivotal means connecting corresponding ends of the members to said substantially radialparts and connecting the opposite ends of the members to the door near the opposite side thereof, the axes of the pivotal means extending crosswise of the first-mentioned axis, and a spring for moving the trap door in one direction about its axis, substantially as and for the purpose described.

31. In (ZOlTlblllfltlOIl with a car platform, a trap door movable about an axis and hav ing an additional movement in. a direction at an angle to the path of movement of the door about its axis, and connections between the platform and the trap door including means movable about said axis, means con nected to the door and to the first-mentioned means, said second-mentioned means turning with the first-mentioned means to turn the door therewith and moving relatively to the first-mentioned means and the door in the additional, movement of the door, and means for effecting the additional movement of the door during the movement of said door about its axis, substantially as and for the purpose specified.

32. In combination with a car platform having an opening therein, a trap door associated with the opening and movable about an axis and having an additional movement in a direction at an angle to the path of movement of the door about its axis, the trap door being also movable toward and from said axis. and connections between the platform and the trap door including means located adjacent the hinged side of the door and movable about said axis, said means being provided with a pair oil. substantially radial engaging parts one in advance of the other beneath the door, spaced apart members connecting the hinged side oi the door to said means and guiding said side oi the door, the members being tixed to the door and being movable laterally relatively to said means when the door moves toward and from said axis, a pair olf si'ibstantially parallel members beneath the door, pivotal means connecting corresponding ends of the members to said substantially radial parts and connecting the (JPIJOHllO ends oi the members to the door near the opposite side thereof, the axes oi the pivotal means extending crosswise of the tirst-mentioncil axis, and means for cl" footing the additional movement ol? the door during the moven'ient of said door about its axis, substantially as and tor the purpose set lorlh.

3?). A trap door of the character described provided with means connected with a plurality of the portions thereof and adapted 'l'herel'iy to control the sidewise movement of the door when connected with the hinging means or platform of the car, substantially as set forth.

El i. A trap door ol the character described providedwith means a portion olf which is engageable with di'll'erent portions oil? the door and another portion is engageable with the hinging means or plat'hnm and thereby adapted to guide it in a line substantially parallel with the axial line of the longing means of the door as the door moves lengthwise oit' such line, when such means is connected with the hinging means or platform, substantially as set forth.

35. A trap door oi the character described provided with means connected with ditfcn cnt portions thereof and adapted to be connected with the hinging means and thereby guide the door in its movement lengthwise ot' the axial line of the hinging means, substantially as set forth.

36. A trap door of the character described provided with means pivotally connected thereto at different points and adapted to be pivotally connected to the hinging means and turn with the door on its axial line of hinging and thereby guide the door in its movement lengthwise oi such axial line as the door turns in opening or closing, substantially as set forth.

37. A trap door of the character described provided with means connected thereto at ditlerent points and adapted to be connected with the hinging means and thereby guide the door in its sidewise movement, and means adapted, when connected in place to project and retract the door in such sidewise direction, sul: stantiall.y as set forth.

88. In a car platform, the combination,

substantially as set forth, of an opening therein, a door for closing such opening, hinging means adapted to permit the door to open and close and also to move lengthwise of the axial line of such means, and means adapted to engage with different portions of the door and with the hinging means and thereby guide the door in its sidewise direction.

39. In a car platform the combination, substantially as set forth, of an opening therein, a door for closing such opening, hinging means adapted to permit the door to open and close and also to move lengthwise of the axial line of such means, means adapted to engage with different portions of the door and with hinging means to guide the door in its sidewise direction, and means connecting with the door and platform adapted to move such door in a line substantially parallel with such axial line.

40. In a car platform the combination, substantially as set forth, of an opening therein, a door for closing such opening, hinging means adapted to connect with the door and platform and permit the door to turn thereon and move lengthwise of the axial line thereof, means conncctible with the door and platform adapted to project the door in a sidewise direction, and means connected with different portions of the door and with the hinging means to guide the door in its sidewise movement.

all. In a car platform the combination, substantially as set forth, of an opening therein, a door for closing such opening, hinging means adapted to connect with the door and platform and permit the door to turn thereon and move lengthwise of the axial line of such means, means connectible with the door and platform adapted to move the door sidewise, and means connectible with different portions of the door and with the hinging means adapted to guide the door in its sidewise movement. 7

42. In a car platform the combination, substantially as set forth, of an opening therein, a door for closing such opening, hinging means adapted to connect with the door and platform and permit the door to turn thereon and move sidewise, and means consisting essentially of two portions each of which is connected with the door at different portions thereof and to the hinging means so as to move relatively thereto as the door moves sidewise and to move with the door as it turns on the hinging means.

43. In a car platform the combination, substantially as set forth, of an opening therein, a door for closing such opening, hinging means adapted to connect with the door and platform and permit the door to turn thereon and move sidewise, and means pivotally connected to the door at different points thereon and to the hinging means and thereby adapted to move with the door at one point of connection and the door to move relatively to that portion of such means which is pivotally connected with the hinging means.

ROY 'I. AXE. Witnesses:

OLIVER M. EDWARDS, NELLIE I. Girroin).

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

It is hereby certified that in Letters Patent No. 1,090,092, granted March 10,

1914, upon the application of Roy '1. Aixe, of Syracuse, New York, for an improvement in Trap-Doors :tor Railway-(Jars and Similar Structures, an error appears in the printed specification requiring correction as follows: Page 3, transpose lines 1 and at as now numbered; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the ease in the Patent Office.

Signed and sealed this 28th day of April, A. 1)., 1914.

[SEAL] J. T. NEWTON,

Acting Commissioner of Patents. 

